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<head><meta charset="utf-8"><title>style-servo on perf.rlo broken · t-compiler · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/index.html">t-compiler</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html">style-servo on perf.rlo broken</a></h3>

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<a name="162565384"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162565384" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162565384">(Apr 04 2019 at 20:31)</a>:</h4>
<div class="codehilite"><pre><span></span>error: internal compiler error: src/librustc/ty/query/plumbing.rs:1195: Cannot force dep node: coherent_trait(core[d9cd]::ops[0]::drop[0]::Drop[0])

thread \&#39;rustc\&#39; panicked at \&#39;Box\&#39;, src/librustc_errors/lib.rs:635:9
note: Run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
error: aborting due to previous error


note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.35.0-nightly (2d065712c 2019-04-04) running on x86_64-unknown-linux-gnu

note: compiler flags: -C debuginfo=2 -C incremental --crate-type lib
</pre></div>



<a name="162565430"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162565430" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162565430">(Apr 04 2019 at 20:31)</a>:</h4>
<p><span class="user-mention" data-user-id="124287">@mw</span> would you perhaps know what could cause that ICE?</p>



<a name="162565518"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162565518" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162565518">(Apr 04 2019 at 20:32)</a>:</h4>
<p>Looks like same error on script-servo, too</p>



<a name="162607679"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162607679" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162607679">(Apr 05 2019 at 09:41)</a>:</h4>
<p>It's certainly incremental compilation related...</p>



<a name="162607831"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162607831" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162607831">(Apr 05 2019 at 09:43)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> do you know when this occurred the first time?</p>



<a name="162608156"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162608156" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162608156">(Apr 05 2019 at 09:48)</a>:</h4>
<p>looks like <a href="https://github.com/rust-lang/rust/pull/59517" target="_blank" title="https://github.com/rust-lang/rust/pull/59517">https://github.com/rust-lang/rust/pull/59517</a> is the culprit.</p>



<a name="162608264"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162608264" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Zoxc <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162608264">(Apr 05 2019 at 09:50)</a>:</h4>
<p>It does add <code>CrateNum</code> to dep nodes, if that could matter</p>



<a name="162608643"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162608643" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162608643">(Apr 05 2019 at 09:57)</a>:</h4>
<p><code>coherent_trait</code> probably shouldn't be <code>no_force</code></p>



<a name="162608757"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162608757" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Zoxc <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162608757">(Apr 05 2019 at 09:59)</a>:</h4>
<p>Yeah, it wasn't previously</p>



<a name="162614909"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162614909" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162614909">(Apr 05 2019 at 11:45)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/commit/e43f99ce576152d4b2f7315d491c4210211228d6" target="_blank" title="https://github.com/rust-lang/rust/commit/e43f99ce576152d4b2f7315d491c4210211228d6">https://github.com/rust-lang/rust/commit/e43f99ce576152d4b2f7315d491c4210211228d6</a> is the first bad commit</p>



<a name="162614913"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162614913" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162614913">(Apr 05 2019 at 11:45)</a>:</h4>
<p><span class="user-mention" data-user-id="116466">@Zoxc</span> looks like your PR</p>



<a name="162614987"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162614987" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Zoxc <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162614987">(Apr 05 2019 at 11:46)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> <a href="https://github.com/rust-lang/rust/pull/59723" target="_blank" title="https://github.com/rust-lang/rust/pull/59723">https://github.com/rust-lang/rust/pull/59723</a> should fix it</p>



<a name="162615009"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162615009" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162615009">(Apr 05 2019 at 11:47)</a>:</h4>
<p>ah okay</p>



<a name="162615025"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/style-servo%20on%20perf.rlo%20broken/near/162615025" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/style-servo.20on.20perf.2Erlo.20broken.html#162615025">(Apr 05 2019 at 11:47)</a>:</h4>
<p>I... missed that bit of scrollback, sorry</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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